<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>bootstrap 初体验</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
  </head>
  <body>
    <div class="container">
      <h2>图片</h2>
      <div class="row">
        <div class="col-lg-2">
          <!-- 生成一个 400 * 300 的图片 -->
          <!-- <img class="img-responsive" src="holder.js/400x300" alt=""> -->
          <img class="img-responsive" src="http://api.xiaohigh.com/image/random" alt="">
        </div>
        <div class="col-lg-2">
          <!-- 生成一个 400 * 300 的图片 -->
          <!-- <img class="img-responsive" src="holder.js/400x300" alt=""> -->
          <img class="img-responsive" src="http://api.xiaohigh.com/image/random" alt="">
        </div>
        <div class="col-lg-2">
          <img class="img-responsive" src="https://www.dmoe.cc/random.php" alt="">
        </div>
      </div>
      <div class="clearfix"></div>

      <h2>形状</h2>
      <img class="img-rounded" data-src="holder.js/200x200" alt="">
      <img class="img-circle" data-src="holder.js/200x200" alt="">
      <img class="img-thumbnail" data-src="holder.js/200x200" alt="">

      <h2>holder.js</h2>
      <img data-src="holder.js/100px200" alt="">
      <img data-src="holder.js/100px200?bg=#158" alt="">
      <img data-src="holder.js/100px200?text=广告位&bg=#89c" alt="">
    </div>
    <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
    <script src="https://cdn.bootcdn.net/ajax/libs/holder/2.9.8/holder.min.js"></script>
  </body>
</html>